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What are the conditions for an ideal solution which obeys Raoult's law over the entire range of concentration?
- a)ΔmixH = 0, ΔmixV = 0, PTotal = pAoxA + pBoxB
- b)ΔmixH = +ve, ΔmixV = 0, PTotal = pAoxA + pBoxB
- c)ΔmixH = 0, ΔmixV = +ve, PTotal = pAoxA + pBoxB
- d)ΔmixH = 0, ΔmixV = 0, PTotal = pBoxB
Correct answer is option 'A'. Can you explain this answer?
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What are the conditions for an ideal solution which obeys Raoults law ...
For an ideal solution, ΔH and Delta ΔV for mixing should be zero. PTotal = pA + pB and A − A, B − B and A − B interactions are nearly same.
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What are the conditions for an ideal solution which obeys Raoults law ...
There are several conditions for an ideal solution to obey Raoult's law over the entire range of concentration:
1) The components of the solution should have similar intermolecular forces. This means that the molecules of the solute and solvent should have similar sizes and polarities.
2) The solution should be dilute, meaning that the solute concentration is relatively low compared to the solvent concentration. This ensures that the interactions between the solute particles are minimal and do not significantly affect the behavior of the solvent.
3) The solution should be at low pressure. Raoult's law is based on the assumption that the vapor pressure of each component is proportional to its mole fraction in the solution. This assumption is valid at low pressures, where the ideal gas law can be applied.
4) The solution should be at a constant temperature. Raoult's law is a temperature-dependent relationship, and it assumes that the solution is at equilibrium. Any changes in temperature can affect the behavior of the components and may cause deviations from Raoult's law.
5) The solution should not undergo any chemical reactions or changes in composition. Raoult's law is based on the assumption that the solution is homogeneous and does not undergo any chemical reactions. Any chemical reactions or changes in composition can lead to deviations from Raoult's law.
It is important to note that ideal solutions that completely obey Raoult's law over the entire concentration range are relatively rare. Most real solutions exhibit deviations from ideal behavior due to factors such as intermolecular interactions, molecular size, and polarity differences.
1) The components of the solution should have similar intermolecular forces. This means that the molecules of the solute and solvent should have similar sizes and polarities.
2) The solution should be dilute, meaning that the solute concentration is relatively low compared to the solvent concentration. This ensures that the interactions between the solute particles are minimal and do not significantly affect the behavior of the solvent.
3) The solution should be at low pressure. Raoult's law is based on the assumption that the vapor pressure of each component is proportional to its mole fraction in the solution. This assumption is valid at low pressures, where the ideal gas law can be applied.
4) The solution should be at a constant temperature. Raoult's law is a temperature-dependent relationship, and it assumes that the solution is at equilibrium. Any changes in temperature can affect the behavior of the components and may cause deviations from Raoult's law.
5) The solution should not undergo any chemical reactions or changes in composition. Raoult's law is based on the assumption that the solution is homogeneous and does not undergo any chemical reactions. Any chemical reactions or changes in composition can lead to deviations from Raoult's law.
It is important to note that ideal solutions that completely obey Raoult's law over the entire concentration range are relatively rare. Most real solutions exhibit deviations from ideal behavior due to factors such as intermolecular interactions, molecular size, and polarity differences.
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What are the conditions for an ideal solution which obeys Raoults law over the entire range of concentration?a)ΔmixH = 0, ΔmixV = 0, PTotal = pAoxA + pBoxBb)ΔmixH = +ve, ΔmixV = 0, PTotal = pAoxA + pBoxBc)ΔmixH = 0, ΔmixV = +ve, PTotal = pAoxA + pBoxBd)ΔmixH = 0, ΔmixV = 0, PTotal = pBoxBCorrect answer is option 'A'. Can you explain this answer?
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